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/
ExtractorsAndIndexesTest.java
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/
ExtractorsAndIndexesTest.java
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/*
* Copyright (c) 2008-2018, Hazelcast, Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.hazelcast.map.impl.query;
import com.hazelcast.config.Config;
import com.hazelcast.config.InMemoryFormat;
import com.hazelcast.config.MapAttributeConfig;
import com.hazelcast.config.MapIndexConfig;
import com.hazelcast.core.HazelcastInstance;
import com.hazelcast.core.IMap;
import com.hazelcast.query.Predicate;
import com.hazelcast.query.Predicates;
import com.hazelcast.query.extractor.ValueCollector;
import com.hazelcast.query.extractor.ValueExtractor;
import com.hazelcast.spi.properties.GroupProperty;
import com.hazelcast.test.HazelcastParallelParametersRunnerFactory;
import com.hazelcast.test.HazelcastTestSupport;
import com.hazelcast.test.annotation.ParallelTest;
import com.hazelcast.test.annotation.QuickTest;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import java.io.Serializable;
import java.util.Collection;
import static com.hazelcast.query.Predicates.equal;
import static java.util.Arrays.asList;
import static org.junit.Assert.assertEquals;
@RunWith(Parameterized.class)
@Parameterized.UseParametersRunnerFactory(HazelcastParallelParametersRunnerFactory.class)
@Category({QuickTest.class, ParallelTest.class})
public class ExtractorsAndIndexesTest extends HazelcastTestSupport {
@Parameterized.Parameters(name = "format:{0}")
public static Collection<Object[]> parameters() {
return asList(new Object[][]{{InMemoryFormat.OBJECT}, {InMemoryFormat.BINARY}});
}
@Parameterized.Parameter
public InMemoryFormat inMemoryFormat;
@Test
public void testExtractorsAreRespectedByEntriesReturnedFromIndexes() {
String mapName = randomMapName();
Config config = new Config();
config.getMapConfig(mapName).setInMemoryFormat(inMemoryFormat).addMapIndexConfig(new MapIndexConfig("last", true))
.addMapAttributeConfig(new MapAttributeConfig("generated", Extractor.class.getName()));
config.getNativeMemoryConfig().setEnabled(true);
config.setProperty(GroupProperty.PARTITION_COUNT.getName(), "1");
HazelcastInstance instance = createHazelcastInstance(config);
IMap<Integer, Person> map = instance.getMap(mapName);
populateMap(map);
// this predicate queries the index
Predicate lastPredicate = equal("last", "last");
// this predicate is not indexed and acts on the entries returned from
// the index which must support extractors otherwise this test will fail
Predicate alwaysFirst = equal("generated", "first");
Predicate composed = Predicates.and(lastPredicate, alwaysFirst);
Collection<Person> values = map.values(composed);
assertEquals(100, values.size());
}
public static class Person implements Serializable {
public String first;
public String last;
}
public static class Extractor extends ValueExtractor<Person, Void> {
@SuppressWarnings("unchecked")
@Override
public void extract(Person person, Void aVoid, ValueCollector valueCollector) {
valueCollector.addObject("first");
}
}
private void populateMap(IMap<Integer, Person> map) {
for (int i = 0; i < 100; i++) {
Person p = new Person();
p.first = "first" + i;
p.last = "last";
map.put(i, p);
}
}
}